Reference for “User Agent Accessibility Guidelines 2.0”

@TechReport{Richards:08:UAA,
  author      = "Jan Richards and James Allan",
  title       = "User Agent Accessibility Guidelines 2.0",
  month       = mar,
  note        = "http://www.w3.org/TR/2008/WD-UAAG20-20080312/",
  year        = "2008",
  bibsource   = "http://w2.syronex.com/jmr/w3c-biblio",
  type        = "",
  institution = "W3C",
}